code: def __init__(self):
      self.model = HarmonicModel()
  
imports: import pytest
  import torch
  import pyro
  import pyro.distributions
  import pyro.poutine
  from pyro.infer import SMCFilter
  from pyro.infer.smcfilter import _systematic_sample
  from tests.common import assert_close
label_desc: Use image node_id 1 to create a new HarmonicGuide object  with example: obj = HarmonicGuide()